18-11-2025 13:59
Nogueira HéctorNovember 14, 2025 Brazuelo (León) SPAIN Hymenosc
17-11-2025 19:14
herman lambertApothécie discoïde 0.6 cm diam., orangeFace hymÃ
17-11-2025 21:57
Philippe PELLICIERBonjour,Récolté sur bois de feuillu mort dur, no
16-11-2025 21:09
Robin Isaksson
Anyone recognize this acc. to pictures.? Found on
17-11-2025 21:46
Philippe PELLICIERBonjour,Récolté sur bois pourrissant de feuillu
14-11-2025 16:26
Marian Jagers
Hello everyone, On dead wood of Cytisus scoparius
15-11-2025 23:22
Mario FilippaHello,this is what I think to be Hymenoscyphus mac
15-11-2025 20:25
Riet van Oosten
Hello, Found by Laurens van der Linde, Nov. 2025

Groet Hans
You quote the spores as 7.5 -19.5 but looking at your micrograph they all look to be in the 7.5-9.5 range. Which is right? The colour does tend to vary but your spores do look quite pale for klenii so I think P crystalinus is the most likely. (unless the spores do reach 19.5)
Mal
"Spores 7.5 - 19.5" is a quotation from the key.
The spore sizes I measured: Me: 10.2 x 6.4 µm, N = 10
So I will name this find P. cristallinus!
Thank you very much for your help!
Riet
To be sure ...
This afternoon I will measure the spores ejected to the lid of the plastic box.
To be continued Hans :-)Â Dank je voor jouw reactie!
The sporangia on the lid showed already two kinds of spores.
So nice (and very educational) to see the difference!
Key:
Spores 7.5-11 x 5-7.5 µm, pale yellow ...................................................P. crystallinus
Spores 10-19.5 x 5.5-9.5 µm, usually deeper yellow/orange....................P. kleinii
It was very hard to find a fruitbody of P. kleinii, but in the end I succeeded :-)
Mooi succes. Groet
Hans
Groetjes, Riet
I do have the following documentation if you are interested:
Sul genere Pilobolus Tode 1874. Contributo allo studio dei funghi fimicoli XXIX.
The biology and taxonomy of Pilobolus. Researches on fungi volume VI.
Species of Pilobolus and Pilaira from India.
Taxa of Pilaira (Mucorales, Zygomycota) from China
Joop
Greetings, Riet
















